Earlier today Caitlin and I were looking at this amazing “natural bathtub” carved out of an immense boulder. It got us wondering — what if we got a bunch of boulders dumped on our foundation, and then built the walls around them, and carved much of our furniture out of immense stones? I mean, there’s really no reason why you couldn’t care out a couch and coffee table if you wanted to — other than the inconvenience of your furniture weighing an unmovable ton or two, it would be wonderful caveman chic, to say nothing of the thermal mass it would contribute (water in that tub would stay warm for days if the stone was at temperature).